3. Creep in Hardened Concrete

Try these first

1. 1.

   What is creep in concrete?

   Hint

   What happens to concrete over time under constant stress?

2. 2.

   Name one factor that influences creep.

   Hint

   Think about environmental conditions and material properties.

3. 3.

   What does creep refer to in concrete?

   • A sudden failure
   • Gradual strain over time
   • Instant deformation

   Hint

   Which option matches the definition?

4. 4.

   True or False: Tertiary creep usually occurs in most structural applications.

   • True
   • False

   Hint

   Think about how well-engineered structures behave.

5. 5.

   Given a concrete beam experiencing sustained loading, develop a formula expressing the total strain considering creep, elastic strain, and shrinkage effects.

   Hint

   Break down each term into its fundamental contribution under constant loading.

6. 6.

   Analyze the impact of varying the mix design from a traditional mix to a low water-cement ratio. Discuss how this affects creep characteristics.

   Hint

   Consider both the short-term handling and long-term performance during your analysis.